<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 搜索于添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区 -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"> </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="210px">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button type="primary" icon="el-icon-edit" size="min" @click="showEditDialog(scope.row.id)">
                        </el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danger" icon="el-icon-delete" size="min" @click="removeUserById(scope.row.id)">
                        </el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="min" @click="setRole(scope.row)">
                            </el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
        </el-card>
        <!-- 添加用户的对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="30%" @close="addDialogClosed">
            <!-- 内容主体区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配角色对话框 -->
        <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClose">
            <div>
                <p>当前的用户：{{ userinfo.username }}</p>
                <p>当前的角色：{{ userinfo.role_name }}</p>
                <p>
                    分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
    export default {
        name: 'Users',

        data() {
            //验证邮箱的规则
            var checkEmail = (rule, value, cb) => {
                //验证邮箱的正则表达式
                const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;

                if (regEmail.test(value)) {
                    //合法邮箱
                    return cb();
                }

                cb(new Error('请输入合法的邮箱'));
            };
            //验证手机号的规则
            var checkMobile = (rule, value, cb) => {
                //验证手机号的正侧表达式
                const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;

                if (regMobile.test(value)) {
                    //合法手机号
                    return cb();
                }
                cb(new Error('请输入合法的手机号'));
            };
            return {
                //获取用户列表的参数对象
                queryInfo: {
                    quety: '',
                    //当前页码
                    pagenum: 1,
                    //当前每页显示多少条数据
                    pagesize: 2,
                },
                userlist: [],
                total: 0,
                //控制添加用户对话框的显示与隐藏
                addDialogVisible: false,
                //添加用户的表单数据
                addForm: {
                    username: '',
                    password: '',
                    email: '',
                    mobile: '',
                },
                //添加表单验证规则的对象
                addFormRules: {
                    username: [
                        {
                            required: true,
                            message: '请输入用户邮箱',
                            trigger: 'blur',
                        },
                        {
                            min: 3,
                            max: 10,
                            message: '用户名长度在3-10个字符之间',
                            trigger: 'blur',
                        },
                    ],
                    password: [
                        {
                            required: true,
                            message: '请输入密码',
                            trigger: 'blur',
                        },
                        {
                            min: 6,
                            max: 15,
                            message: '用户名长度在6-15个字符之间',
                            trigger: 'blur',
                        },
                    ],
                    email: [
                        {
                            required: true,
                            message: '请输入邮箱',
                            trigger: 'blur',
                        },
                        {
                            validator: checkEmail,
                            trigger: 'blur',
                        },
                    ],
                    mobile: [
                        {
                            required: true,
                            message: '请输入手机号',
                            trigger: 'blur',
                        },
                        {
                            validator: checkMobile,
                            trigger: 'blur',
                        },
                    ],
                },
                //控制修改用户对话框的显示与隐藏
                editDialogVisible: false,
                //查询到的用户信息对象
                editForm: {},
                //修改表单的验证规则对象
                editFormRules: {
                    email: [
                        {
                            required: true,
                            message: '请输入邮箱',
                            trigger: 'blur',
                        },
                        {
                            validator: checkEmail,
                            trigger: 'blur',
                        },
                    ],
                    mobile: [
                        {
                            required: true,
                            message: '请输入手机号',
                            trigger: 'blur',
                        },
                        {
                            validator: checkMobile,
                            trigger: 'blur',
                        },
                    ],
                },
                //控制分配角色对话框的显示与隐藏
                setRoleDialogVisible: false,
                //需要被分配角色的用户信息
                userinfo: {},
                //所有角色的数据列表
                rolesList: [],
                //已选中的ID 值
                selectedRoleId: '',
            };
        },
        created() {
            this.getUserList();
        },
        methods: {
            async getUserList() {
                const { data: res } = await this.$http.get('users', {
                    params: this.queryInfo,
                });
                if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！');
                this.userlist = res.data.users;
                this.total = res.data.total;
                console.log('res===', res);
            },
            //监听 pagesize改变的事件
            handleSizeChange(newSize) {
                this.queryInfo.pagesize = newSize;
                this.getUserList();
            },
            // 监听页码值 改变的事件
            handleCurrentChange(newPage) {
                this.queryInfo.pagenum = newPage;
                this.getUserList();
            },
            async userStateChanged(userinfo) {
                console.log(userinfo);
                const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`);
                if (res.meta.status !== 200) {
                    userinfo.mg_state = !userinfo.mg_state;
                    return this.$message.error('更新用户状态失败');
                }
                this.$message.success('更新用户状态成功');
            },
            //监听添加用户对话框的关闭事件
            addDialogClosed() {
                this.$refs.addFormRef.resetFields();
            },
            //点击按钮,添加新用户
            addUser() {
                this.$refs.addFormRef.validate(async valid => {
                    if (!valid) return;
                    //可以发起添加用户的网络请求
                    const { data: res } = await this.$http.post('users', this.addForm);
                    if (res.meta.status !== 201) {
                        this.$message.error('添加用户失败！');
                    }
                    this.$message.success('添加用户成功');
                    //隐藏添加用户的对话框
                    this.addDialogVisible = false;
                    //重新获取用户列表数据
                    this.getUserList();
                });
            },
            //展示编辑用户的对话框
            async showEditDialog(id) {
                const { data: res } = await this.$http.get('users/' + id);
                if (res.meta.status !== 200) {
                    return this.$message.error('查询用户信息失败');
                }
                this.editForm = res.data;
                this.editDialogVisible = true;
                // console.log(id);
            },
            //监听修改用户对话框的关闭事件
            editDialogClosed() {
                this.$refs.editFormRef.resetFields();
            },
            //修改用户信息并提交
            editUserInfo() {
                this.$refs.editFormRef.validate(async valid => {
                    if (!valid) return;
                    //发起修改用户信息的数据请求
                    const { data: res } = await this.$http.put('users/' + this.editForm.id, {
                        email: this.editForm.email,
                        mobile: this.editForm.mobile,
                    });

                    if (res.meta.status !== 200) {
                        return this.$message.error('更新用户信息失败！');
                    }
                    //关闭对话框
                    this.editDialogVisible = false;
                    //刷新数据列表
                    this.getUserList();
                    //提示修改成功
                    this.$message.success('更新用户信息成功');
                });
            },
            //根据id删除对应的用户信息
            async removeUserById(id) {
                //弹框询问用户是否删除数据
                const confirmResult = await this.$confirm('此操作将永久删除该该用户, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning',
                }).catch(err => err);
                //如果用户确认删除，则返回值为字符串 confirm
                //如果用户取消删除，则返回值为字符串 cancel
                // console.log(confirmResult);
                if (confirmResult !== 'confirm') {
                    return this.$message.info('已取消删除');
                }
                const { data: res } = await this.$http.delete('users/' + id);
                if (res.meta.status !== 200) {
                    return this.$message.error('删除用户失败');
                }
                this.$message.success('删除用户成功!');
                this.getUserList();
            },
            //展示分配角色的对话框
            async setRole(userinfo) {
                this.userinfo = userinfo;
                //在展示对话框之前，获取所有的角色列表
                const { data: res } = await this.$http.get('roles');
                if (res.meta.status !== 200) {
                    return this.$message.error('获取角色列表失败！');
                }
                this.rolesList = res.data;
                this.setRoleDialogVisible = true;
            },
            //点击按钮 分配角色
            async saveRoleInfo() {
                if (!this.selectedRoleId) {
                    return this.$message.error('请选择要分配的角色！');
                }
                const { data: res } = await this.$http.put(`users/${this.userinfo.id}/role`, {
                    rid: this.selectedRoleId,
                });
                if (res.meta.status !== 200) {
                    return this.$message.error('更新角色失败！');
                }
                this.$message.success('更新角色成功');
                this.getUserList();
                this.setRoleDialogVisible = false;
            },
            //监听分配角色对话框的关闭事件
            setRoleDialogClose() {
                this.selectedRoleId = '';
                this.userinfo = {};
            },
        },
    };
</script>

<style lang="less" scoped></style>
